Since a group of ravens is called a "conspiracy", and a group of crows (also black) is called a "murder", i vote for a group of black holes to called either a "plot" (which has both the scheming and the cemetery parcel connotations), or a "collusion" (which also has the first four letters of "collapsed").

Since a group of ravens is called a "conspiracy", and a group of crows (also black) is called a "murder", i vote for a group of black holes to called either a "plot" (which has both the scheming and the cemetery parcel connotations), or a "collusion" (which also has the first four letters of "collapsed").

<<One of the retired educators attending the speech, Jim Rudisill, told about a 16-holer at Camp Pamadeva, near Smith Station in southwestern York County. That was 16 on the boys' side and 16 on the girls' side, situated back to back. Hmm, that makes 32 holes.>>